This workflow is for Compact Card backup If you don't have the CF card and only the media we can fix it by getting a camera and formatting a card and then putting your media back on the card.
Also try this wiki
AVID – Canon XF Utility – CF Card Data Repair Workflow
Make folders on your Backup Drive that are organized by "Day" and "Number of Cards" that are to be backed up
Load card to be backed up in to CF Card reader.
This will only work with a CF card!! Won't work with a folder backup.
Card Structure should be
See frame grab to the Right
Make sure the card has this structure
Launch Canon XF Utility
Go to >Canon XF Utility>
Choose to user Folder A Only
Select the CANON XF CARD
Click the Backup button
Will show a status bar of the copying process.
Clips backed up successfully YAY!!
When finished with backup Quit XF Utility
You will end up with a folder named with the date and some other numbers in the title
Example shown here.
Do this for all the CF cards you want to use for editing.
When finished VERY IMPORTANT EJECT THE CARD